I remember back when I was a student in A&P, I found it very difficult to study histology outside of lab hours as there were no online resources to practice with. Thus, as a former TA I went ahead and made online quizzes of slides that you are likely to see in the lab. I hope you find this helpful in your studies. I strongly recommend that you still use your lab time to learn from your professors and TAs as they will help guide you through the material. Happy studying and shoot for the A++!!